:root{--primary: #EA580C;--primary-hover: #C2410C;--primary-light: #FFF7ED;--primary-dark: #9A3412;--primary-dark-hover: #7B2D12;--bg-page: #FFFBEB;--bg-sidebar: #9A3412;--bg-card: #FFFFFF;--navy: #0F172A;--text-secondary: #64748B;--text-muted: #94A3B8;--amber: #D97706;--amber-light: #FFEDD5;--green: #10B981;--green-light: #D1FAE5;--red: #EF4444;--red-light: #FEE2E2;--border: #E2E8F0;--border-light: #F1F5F9;--radius: 8px;--radius-sm: 6px;--shadow: 0 2px 8px rgba(0, 0, 0, .08);--shadow-lg: 0 4px 16px rgba(0, 0, 0, .1)}*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}html,body{height:100%;font-family:-apple-system,BlinkMacSystemFont,Noto Sans SC,PingFang SC,Microsoft YaHei,sans-serif;color:var(--navy);background:var(--bg-page);font-size:14px;line-height:1.5;-webkit-font-smoothing:antialiased}#root{height:100%}a{color:var(--primary);text-decoration:none}a:hover{color:var(--primary-hover)}.ant-layout-sider{background:var(--bg-sidebar)!important}.ant-menu-dark{background:transparent!important}.ant-menu-dark .ant-menu-item-selected{background-color:var(--primary-dark-hover)!important}.ant-menu-dark .ant-menu-item:hover{background-color:#ffffff14!important}.ant-btn-primary{background-color:var(--primary)!important;border-color:var(--primary)!important}.ant-btn-primary:hover{background-color:var(--primary-hover)!important;border-color:var(--primary-hover)!important}.ant-tag.ant-tag-processing{background:var(--primary-light);border-color:var(--primary);color:var(--primary)}.ant-card{border-radius:var(--radius);box-shadow:var(--shadow)}.ant-table-wrapper .ant-table-thead>tr>th{background:var(--primary-light);color:var(--primary-dark);font-weight:600}.page-header{margin-bottom:24px}.page-header h2{font-size:24px;font-weight:700;color:var(--navy);margin-bottom:4px}.page-header p{color:var(--text-secondary)}.stats-row{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:24px}.stat-card{background:#fff;border-radius:var(--radius);padding:20px;box-shadow:var(--shadow)}.stat-card .stat-label{font-size:13px;color:var(--text-secondary);margin-bottom:8px}.stat-card .stat-value{font-size:28px;font-weight:700;color:var(--navy)}.stat-card .stat-change{font-size:12px;margin-top:6px}.stat-card .stat-change.up{color:var(--red)}.stat-card .stat-change.down{color:var(--green)}.tree-header-bar{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;cursor:pointer;-webkit-user-select:none;user-select:none;border-bottom:1px solid var(--border-light)}.tree-header-bar:hover{background:var(--primary-light)}.tree-header-bar .tree-title{font-size:16px;font-weight:700;color:var(--navy)}.tree-category{display:flex;align-items:center;gap:12px;padding:10px 16px;cursor:pointer;transition:background .2s;flex-wrap:wrap}.tree-category:hover{background:#fafafa}.tree-category .cat-label{font-size:14px;font-weight:600;white-space:nowrap}.tree-category .cat-bar{flex:1;height:8px;background:#f1f5f9;border-radius:4px;overflow:hidden}.tree-category .cat-bar-fill{height:100%;border-radius:4px;background:var(--primary);transition:width .4s ease}.tree-category .cat-pct{font-size:12px;color:var(--text-secondary);min-width:38px;text-align:right}.tree-category .cat-arrow{font-size:12px;color:var(--text-muted);transition:transform .2s}.tree-category .cat-arrow.expanded{transform:rotate(90deg)}.tree-topics-wrapper{width:100%;padding:10px 16px 10px 120px;background:#fff7ed;border-radius:6px;display:none}.tree-topics-wrapper.show{display:flex;flex-wrap:wrap;gap:8px}.topic-tag{display:inline-flex;align-items:center;gap:4px;padding:4px 10px;border-radius:4px;font-size:12px;font-weight:500}.topic-tag.mastered{background:var(--green-light);color:#065f46}.topic-tag.weak{background:var(--red-light);color:#991b1b}.topic-tag.untouched{background:#f1f5f9;color:#94a3b8}.filter-row{display:flex;gap:12px;align-items:center;margin-bottom:20px;flex-wrap:wrap}.subject-tabs{display:flex;gap:8px;margin-bottom:20px}.subject-tab{padding:6px 18px;border-radius:20px;border:1px solid var(--border);background:#fff;cursor:pointer;font-size:13px;font-weight:500;transition:all .2s}.subject-tab:hover{border-color:var(--primary);color:var(--primary)}.subject-tab.active{background:var(--primary);color:#fff;border-color:var(--primary)}.upload-zone{display:inline-block!important;width:100%;max-width:100%;min-width:0;box-sizing:border-box;border:2px dashed #D1D5DB;border-radius:var(--radius);padding:48px;text-align:center;cursor:pointer;transition:all .2s;background:#fafafa;overflow:hidden;margin-left:0;margin-right:0}.upload-zone:hover{border-color:var(--primary);background:var(--primary-light)}.upload-zone .ant-upload,.upload-zone .ant-upload-drag{width:100%;max-width:100%;min-width:0;box-sizing:border-box;overflow:hidden;margin-left:0;margin-right:0;left:0}.upload-zone .ant-upload-btn{width:100%;max-width:100%;min-width:0;box-sizing:border-box}.upload-zone .ant-upload-drag-container{max-width:100%;min-width:0;overflow:hidden;word-break:break-all}.ant-card-body>.ant-space{min-width:0;max-width:100%;width:100%}.ant-card-body .ant-space-item{min-width:0;max-width:100%;width:100%}.ant-upload-list-item-name{font-weight:500}.upload-zone+.ant-upload-list{width:100%;max-width:100%}.ant-btn[disabled].ant-btn-primary{opacity:.5;cursor:not-allowed}.template-actions{display:flex;gap:12px;margin-top:24px;padding-top:20px;border-top:1px solid var(--border-light)}.sug-tabs{display:flex;gap:4px;background:#f1f5f9;border-radius:8px;padding:4px;margin-bottom:20px}.sug-tab{flex:1;padding:8px 16px;border-radius:6px;text-align:center;cursor:pointer;font-size:13px;font-weight:500;color:var(--text-secondary);transition:all .2s}.sug-tab:hover{color:var(--primary)}.sug-tab.active{background:#fff;color:var(--primary);box-shadow:0 1px 4px #00000014}.toast-container{position:fixed;top:24px;right:24px;z-index:9999;display:flex;flex-direction:column;gap:8px}.toast{padding:12px 20px;border-radius:var(--radius);color:#fff;font-size:14px;font-weight:500;box-shadow:var(--shadow-lg);animation:toastIn .3s ease;max-width:360px}.toast.success{background:var(--green)}.toast.error{background:var(--red)}.toast.info{background:#3b82f6}.toast.warning{background:var(--amber)}@keyframes toastIn{0%{opacity:0;transform:translate(40px)}to{opacity:1;transform:translate(0)}}@media(max-width:1200px){.stats-row{grid-template-columns:repeat(2,1fr)}.ant-card{max-width:100%!important;overflow-x:hidden}.ant-card-body{overflow-x:auto}}@media(max-width:768px){.stats-row{grid-template-columns:1fr}.ant-card-body{padding:12px!important}.upload-zone{padding:24px}}